Guide track for rolling window screens



June 1"?, 1930. N. H. NELSON 1,764,880-

GUIDE TRACK FOR ROLLING WINDOW SCREENS Filed June 8, 1925 2 Sheevts-Sheet 1 June 17, 1930.

N. H. NELSON GUIDE TRACK FOR ROLLING WINDOW SCREENS Filed Ju ne 8, 1925 2 Sheets-Sheet 2 Maffia/*yf* independent runways,

. adapted to have. a friction block slidably ,to slidably .moved within the track.

`Patented June 17, 1.930

UNITED, STATES/PATENT OFFICE NELS E. NELSON, 0F DES MOINES, IOWA, ASSIGNOR, BY DIRECT AND MESNE ASSIGN- MENraro noLscnEnN COMPANY, or

DES MOINES, IOWA, A. CORPORATION GUIDE TRACK FOR ROLLING WINDOW SCREENS `Application led June 8, 1925. Serial No. 35,774.

A .The object of my invention is to provide ,a guide track for rolling window screens wherein the screen may engage each track or guide at two places forinsuring against any possible sagging or bulglng of the screen vwhen stretched across a window .opening between two of the guides.

It may be here mentioned that in a rolling window screen where the screen rolls up, it is'Pnecessary to employ somestap'les or clips on the side edges gof the screen so asY to insure a proper engagement of the 'side edges of the screen with the guides placed along the sides of the window casing or frame and at the .same time to so arrange staples or clips so that when the screen is rolled up, it n vwill not excessively increase the diameter of the screen where the staples are, and it is my object therefore to provide a pair of rows of staples adapted to engage two portions of .a guide 'in which the edge of the screen having the staples therein travels.

Still a further object is to provide a air of tracks or guides arranged along vthe sides of a window frame for receiving the edges of a rolling window screen each track or guide being divided into two substantially one of which receives one row of staples and the other of which receives the other row of staples on the screen.

Still afurtherobject isto provide. a track mounted therein, and which causes the track Still a further object is'to arrange the rows of staples in staggered relatlon so as. to reduce to a minimum any amount. of sagging or bulging of'the screen between lts two side edges. v

With these and other objectsl in view, my

invention consists in the construction, ar-v rangement and combination of the various parts of my'device, whereby the objects contemplated are attained, as hereinafter more and illustrated fully set forth, pointed out in my claims,

in the accompanying drawings, in which:

expand and contract as it is Arlling window screen with my improved guide or track shown in connection therewith, parts being broken awayin order to better illustrate the construction.

Figure 2 is a sectional view taken on line 2 2 of Figure 1, particularly showing the double runway of the track and the-arrange ment of the staples which are shownin substantially center position relative to the two runways of the track. l

Figure 3 is al sectional viewf 3 3 of Figure 1 showing the binder for the lower edge of the screen andthe friction block which is mounted in the inner runway of the track; and Figure 4 is a perspective view of a roll- 1ng window screen with my device thereon, parts being broken away and shown in section to better illustrate the construction.

In the accompanying drawings, I have used the reference numeral 10 to indicate generally one side of a window casing or frame.

y guide track for rolling, window screens includes a track 11 which is secured to each side ofthe window casing 10.

It may be here mentioned that the tracks 11 are arranged in spaced upright position and receive therebetween. a sheet of wire screening 12. The screen 12 is adapted to have its side edges fit into the spaced tracks 11. The screen wire 12 is adapted to be rolled up on the roller `9`or unrolled therefrom.

The lower edge of the screen'is formed with a metal binder 13, which has a friction each end.

The binder 13 includes a horizontal flange Y 15 against which the friction block rests. The friction block 14 is connected to the binder13 byfa slot and pin connection 16.

The track 10 includes an outer runway 17 and an inner runway 18.

I have shown my track as formed of a pair of similar opposed members wherein the placing ofy the two members against each other will form substantially two separate runways. 'Figure 1 is a plan view of a portlon of a A The outer runway 17 is shown as suband 18, I form a pair of fiat `as will hereinafter be more fully set forth.l

18, while the row ci clips main comparativel The friction block 1/1 is substantially U- shaped and has its connecting part substantial circular, as at 20.

T e portion 2O of the friction block -14 is received within the inner runway 18 of the track 11.

A portion of each end of the binder 13 extends above the friction block 14 and projects beyond the portion 20 thereof into the runways 17 and between the two iiat parts 19 of the track 11. The extending portion of the binder 13 is referred to by the reference numeral 13.

The sides edges of the screen 12 each have a pair of rows of spaced staples or clips 21 and 22.

The row of clips 21 travel in the runway 22 travel in the runway 17..

The clips 21 and 22 are spaced a su cient distance apart so that the entire screen. may be rolled up without any excessive amount of binding or increase in the over all diameter of the screen when rolled u The friction block 14 may be move rela=' tive to thev binder 13 a sufficient distance to permit the staples 21 and 22 to engage the track 11 at the points 23 and 24 respectively.

r1`he use of two rows of clips practically gives me a double track engagement with the screen, and yet I have no great amount of staples in anyone particular row. In other words, by the use of two runwa s I can use twice as many staples as Il coul inone row and one runway, without increasing the dimeter of the rolled screen.

It ma be here mentioned that in comparative y large windows where the tracks 11 are spaced a considerable distance apart, there is a tendency for the. screen to bulge and by using two rows of staples and two runways, I provide ascreen that will retaut at all times.

The screen 12 is rther held by the tracks 11 by its engagement between the two flat parts 19 and t e two outturnedanges 25.

A portion 13a of the binder 13 travels between the two parts 19 and tends to cause them to be spread apart due to the fact that the parts 19 are normally spaced apart` only the distance ynecessary to permit a screen to travel therebetween.

When the art 13a travels upwardly in the track 11, t len the two parts of the track spread apart and assume a position substantially, as is shown in Figure 3 of the drawings.

v track -11 are substantially and travels to slide len A sectional view taken through the tracks and screen at a place where the part 13'L is not located, shows that the parts 19 of the close to ether, and this is illustrated particularly in igure 2 of the drawings.

It will be noted that the friction block 14 frictionally engages with the track 11.

In addition to the portion 20 of the friction block 14 frictionally enga in the track 11, I have the part 13a of the in er 13 also frictionally engaged between the parts 19 of the track 11.

Some changes may be made in the construction and arrangement of the various arts of my invention, without departing rom the real spirit vention, and it is m intention to cover by my claims, any modified forms of structure or use of mechanical equivalents, which may be reasonably included within their scope.

I claim as my invention:

1. A rolling window screen having a uide for its side edge and a binder for its ower edge, a tubular friction block mounted on the end of the binder and projecting therebeyond and adapted to travel in the guide and means of connection between the friction block and the binder for permitting lateral movement of the friction block relative to the binder, said ineens et connection comprising a sl'ot and pin device and a shoulder on saidbinder arranged parallel with said slot to prevent pivotal movement of the friction block by slidably engaging one edge thereof.

2. A rolling window screen havin a guide for-its side edge and a binder for its lower edge, a vertically arranged tubular member mounted upon the end of said binder and capable of lateral movement relative thereto, said tubular member `being connected with said binder by a pin and slot device and a shoulder on said binder arranged in parallel relation to said slot to prevent pivotal movement of the friction block by slidably engaging one edge thereof, said tubular member being adapted to travel in the guide.

3. A rolling window screen construction.

having a sltted guide for receiving the side edge of the screen and a binder for its lower edge, a guide bloclr forming an extension of and purpose of my insaid binder comprising an enlarged portion adapted to bevreceived in and to slide in said guide and being of substantially the same cross sectional area as the cross sectional area of the interior of said guide, a vertically arranged reduced portion adapted gthwise. within the slitted portion of said guide and a flat ortion forming a continuation of4 said re uced adapted to be attached to said bin er and a loose connection for said flat portion allowing movement in one plane only comortion l prising a pin and slot Astructure and a por-l tion 'of said binder arranged parallel to said slot and adapted to be slidingly engaged by a part of said guide block.

4. A rolling window screen construction having a guide provided with a slit opening extending lengthwise thereof for re ceiving the side edge of a screen and a binder for its lower edge, a guide block comprising a portion adapted to be received in said guide and conform to the interior contour thereof and to slide therein, a reduced portion to slide within the slit openingV in said uide and a thickened Hat portion adapter? to be attached to said binder and means of attachment for said Hat portion comprising a pin extending through openings in said 'lat portion and said binder, one of said openings being of greater length than the other for allowing slidable movement of the guide block relative to the binder and means comprising a portion of Lthe binder adapted to be slidably engaged by the guide block to preventpivotal movement of the guide block relative to the V binder.

Des Moines, Iowa, 'J une 4, 1925.

NELS H. NELSON., 

